Spring-tire.



A. J. MORSE.

vSPRING'TIRE.

APPLICATION FILED JULY 1, 1914.

Patented Oct. 26, 1915.

ne /lf Attorney W%essws COLUMBIA PLANOBRAPH CO-JVASHINOTON, D. c.

TTNTTD @TATEh' PATENT i rioia ARTHUR JOSEPH -ILVIOIKISIEI, OF NEWPORT,MELBOURNE, VICTORIA, AUSTRALIA.

srnrive-rinn.

Specification of Letters Patent. 7

Patented n t. as, ieiii.

Application filedJuly 1, 1914. Serial No. 848,332.

To all whom it may concern:

Be it known that "I, ARTHUR Josnrrr MORSE, a subject of the King of.Great' certain new and useful Improvements in' Spring-Tires, of whichthe following is a specification.

This invention relates to resilient tires -for vehicle wheels of thekind wherein a series of helical springs are disposed around the wheelrim.

Hitherto a variety of arrangements of this character have been proposed,many of which have been defective, have created noise, and have beenexposed to the detrimental influence of the weather.

The object of this invention is to provide a cheap, simple and effectivecombination which will be equally applicable to existing as to newwheels, and in which the springs around the periphery of the wheel areprotected and so inclosed that the appearance of the tire corresponds tothat of the ordinary pneumatic type. v a

Referring to the drawings which form a part of this specification:Figure 1 is a cross section of a spring tire according to theinvention. Fig. 2 is a detail elevation partly in section and showing aspring in position between an inner and an outer flexiployed as seen inFigs. 1 and 2. Pig. 4: is a perspective view of a retention plate. Fig.

5 is a sectional detail view showing a re tension plate holdingtheenlarged inner convolutions of two springs. Fig. 6 is a side view ofhalf of a wheel according to the invention, the lower half of theviewbeing in side elevation and the upper half being in section. Portionshave been removed or omitted for convenience of illus-- tration.

The invention includes a rim 2 through which are formed a series ofretention bolt holes. Around the periphery of the rim and securedthereto is a circumferential ring 3 having side flanges 4. Through thering 8 are bolt holes corresponding with the bolt holes in the rim. Aring such as 3 is usually attached to common automobile springs 7.

wheels. 7 In the present instance, however,

the ordinary side flanges are elevated instead oi being inturned.

Around the ring 3 and between the side flanges 41: thereof is an innerflexible ring It may be 5 of any suitable material. formed of leather.Projecting from the flexible ring 5 is a series of protuberances (3whose peripheral walls are substantially radial with respect to the tireand formed through the said flexible ring 5 are bolt holes correspondingwith the holes in the rim 2 and the circumferential ring 3. Bearingagainst the inner flexible ring 5, and snugly encircling theprotuberances 6, are the inner convolutions of a series of helical Theinnermost convolution of each spring 7 is enlarged or extended as at 8.The outermost convolution of each spring is also enlarged or extended asat 9. The intermediate convolutions between the enlarged inner and outerconvolutions are, in side elevation, tapered or of larger diametertoward the outermost than toward the innermost convolution.

the whole spring is of the same width, as

a larger outer than inner convolution the This is shown n Figs. 2 and 6.In end elevation, however,

difference between the diameters of the in- .ner flexible ring 5 andan-outer flexible ring,

1 provided for. 1* ormed through each enlarged inner convo hereinafterdescribed, is

lilliil0n 8 at eachinner side thereof is abolt 10 e. retaining thespring to the inner flexible ring 5 are holding bolts-10.

Extending between the enlarged inner convolutions 8 of adjacent helicalsprings 7 are retention plates 11 each having at each of its ends adownturned lip 12. Passing through the retention plates between thesprings, through the bolt holes in the inner flexible ring 5, throughthe bolt holes in the circumferential ring 3 and through thecorresponding bolt holes in the rim 2 are retention bolts 18. Thesprings 7 and inner flexible ring 5 are thereby securely retained toeach other and to the rim 2.

Encircling the enlarged outer convolutions 9 of the helical springs 7 isan outer flexible ring 14: having a convex tread surface 15. Projectinginwardly from the ring '14 is a series of protuberances 16 snuglyencircled by the springs7. The peripheral walls of these protuberancesare substan Passing through the bolt holes and tially radial withrespect to the tire.

' Formed through the outer flexible ring 14E tends a right wall 19 andleft head 20 from which extends a left wall 21. Between the wallsextends a tread 22 which may be suitably reinforced. Formed in-thecover, in the tread portion thereof, are two circumfer'ential steps orshoulders 30 to securely retain the cover in proper lateral position inrelation to the flexible ring 14. Retain ing the cover to the rin 12 isa right ring com- .prising a flange 23 integral with which is a shoulder24 having an overhanging lip 25 forming an internal head space. Into thebeadf space right head 18 ofthe cover passes. A leftring is alsoemployed tov retain the cover. It comprises a flange 2Y6 integral withwhich is a shoulder 27 having an overhanging lip 28 forming an internalbead space. Into'the said bead space the left head 20 passes. Extendingbetween the flanges 23 and 26 and passing through the rim 2. of thewheel isa series of holding it bolts 29.

With this invention a series of compression springs is provided aroundthe periphery of a wheel to absorb road shocks and inequalities, whichsprings, however, are comparatively noiseless owing to the coverinclosing the same. Further the springs are. 1 protected from theweather, dust and the like. To assemble the parts the inner flexiblering 5 carrying the springs 7 is sprung over the circumferential ring 3.Or the said inner flexible ring may be divided and its ends be laced orotherwise secured together after said ring is placed in position aroundthe circumferential ring 3. The

inner flexible ring 5 and the springs re- I tamed thereto are nowsecurely held together and to the rim 2 by means of the retention plates11 andbolts 13. The right retention I ring by itsflange 23 and holdingbolts 29 is bkfi iiesbf this patent niay be obtained for placed,in'p'osition-uponthe rim 2, the right V the internal head space of thesaid right bead 18 of the cover being accommodated ring and bearingagainst the corresponding flange 4: of the circumferential ring 3. A

suitablegclamping device may be employed to compress .allofthe springsif necessary. The left Wall 21 .of the cover is now passed over theouter flexible ring 14', the left bead 20 being then passed beneath thecorresponding flange 4c of the circumferential ring 3 and into theinternal bead space of the left ring. The flanges 23 and 26 of the rightand left wings are now drawn together and held to the rim 2 by means ofthe holding bolts 29 hereinbefore described and no circumferentialmovement or creep can occur between the various parts.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is 1. In a tire, the combination of inner andouter substantially concentric rings, protuberances arranged on theopposing faces of said rings, the said protuherances being arranged inpairs and elongated circumferentially of the tire, the end walls of eachpair of said protuberances being arranged in a line substantiallyradially of the wheel and tire, and helical springs interposed betweensaid rings and having their terminal convolutions of greater diametersthan the intermediate convolutions and snugly embracing the walls of theopposing protuberances.

2. In a tire, the combination of inner and outer substantiallyconcentric flexible rings, protuberances formed integrally within saidrings upon the opposing faces thereof, the said protuberances belngarranged in pairs and elongated circumferentially of the tire, the endwalls of each pair of said protuberances being arranged in a linesubstantially radially of the wheel and tire, and helical springsinterposed between said rings and having their terminal convolutions ofgreater diameters than the intermediate convolutions and snuglyembracing the walls of the opposing protuberances.

3. In a tire, the combination of inner and outer flexible andsubstantially concentric rings having radially alined protuberances upontheir opposing faces and helical springs interposed between said ringsand embracing said protuberances with their end convolutions; retentionplates each provided at its opposite ends with angular disposed lips forengagement with the inner face of the said'end convolutions, each plateextending from one spring to the adjacent end of the next radiallydisposed spring, and bolts passing through said plates and the saidinner ring to secure the tire to the rim of the wheel.

In testimony whereof I have hereunto affixed my signature in thepresence of two subscribing witnesses.

ARTHUR JOSEPH MORSE.

five eents each, by addressing the Commissioner of Patents, Washington,13.0. i

